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- Title
Highly Efficient and Thermally Durable Luminescence of 1D Eu<sup>3+</sup> Coordination Polymers with Arsenic Bridging Ligands.
- Authors
Shimoji, Haruki; Aoyama, Yuto; Inage, Kota; Nakamura, Masashi; Yanagihara, Takumi; Yuhara, Kazuhiro; Kitagawa, Yuichi; Hasegawa, Yasuchika; Ito, Shunichiro; Tanaka, Kazuo; Imoto, Hiroaki; Naka, Kensuke
- Abstract
In this work, bisarsine oxides were evaluated as novel bridging ligands, aiming to develop practical and efficient luminescent lanthanide coordination polymers. We have synthesized one‐dimensional (1D) Eu3+ coordination polymers that incorporate bisarsine oxide bridging ligands and hexafluoroacetylacetonate anions. These polymers exhibited a denser packing of chains compared to analogous polymers bridged with bisphosphine oxides. The coordination polymers demonstrated exceptional thermal stability and substantial emission quantum yields. Additionally, the bisarsine oxides induced a pronounced polarization effect, facilitating a sensitive electric dipole transition that yields considerably narrow band red emission. Remarkably, the Eu3+ coordination polymers with bisarsine oxides maintained intense emission even at 550 K. A distinctive feature of these polymers is their heating‐induced emission enhancement observed when the temperature was increased from 300 K to 400 K.
- Subjects
COORDINATION polymers; BRIDGING ligands; ELECTRIC dipole transitions; LUMINESCENCE; ARSENIC
- Publication
Chemistry - A European Journal, 2024, Vol 30, Issue 33, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202400615